1) High-vacuum and precise measurement
2) With a very soft sleeve
3) Superior handgrip with quick release valve
 
Material:silicone+ABS+PC+silicone
Color:Black
Battery: 3.7V/mAh
Size:290*70*70mm
Function:2*4 modes
Charging time:120minutes
Working time:300minutes
Charging method:USB charging
Noise design: ≤50dB
Waterproof:NO